ICS9120-52 [ICSI]
Frequency Generator for CD-ROM Systems; 频率发生器用于CD-ROM系统
| 型号： | ICS9120-52 |
| 厂家： | 
INTEGRATED CIRCUIT SOLUTION INC |
| 描述： | Frequency Generator for CD-ROM Systems |
| 文件： | 总5页 (文件大小：88K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Integrated
Circuit
ICS9120-52
Systems, Inc.
Frequency Generator for CD-ROM Systems
General Description
Features
•
Generates 33.8688 MHz or 42.83 MHz decode clocks
The ICS9120-52 is a high performance frequency generator
designed to support digital compact disk drive systems. It
offers all clock frequencies required for the servo and
decoder sections of these devices. These frequencies are
synthesized from a single 16.9344 MHz on-chip oscillator.
plus the 20 and 40 MHz fixed clocks
•
•
•
•
•
•
Single 8.4672 MHz crystal or system clock reference
200ps one sigma jitter maintains 16-bit performance
Output rise/fall times less than 2.0ns
On-chip loop filter components
3.3V-5Vsupply range
8-pin,150-milSOIC
High accuracy, low jitter PLLs meet the 150 ppm frequency
tolerance required by these systems. Fast output clock
edge rates minimize board induced jitter.
Unlike competitive devices, the ICS9120-52 operates over
the entire 3.0-5.5V range.
Applications
•
Specifically designed to support the high performance
requirements of CD-ROM drive systems
Functionality
X1, X2
(M Hz)
FS
0
Divisor
X12÷3
X61÷6
CLK1
33.8688
42.83
Pin Configuration
8.4672
86.4672
1
X1, X2
(M Hz)
Output
(M Hz)
Clock
20M
Divisor
8.4672
8.4672
X52÷11÷2 20.0134
X52÷11 40.0268
40M
8-Pin SOIC
Block Diagram
9120-52 Rev B 052497P
ICS reserves the right to make changes in the device data identified in this publication
without further notice. ICS advises its customers to obtain the latest version of all
device data to verify that any information being relied upon by the customer is current
and accurate.
ICS9120-52
Pin Descriptions
PIN
PIN
TYPE
DESCRIPTION
NUMBER NAME
1
2
3
4
5
6
7
8
X1
VDD
GND
20M
CLK1
40M
FS
Input Crystal or external clock source. Has feedback bias for crystal.
Power +Power supply input.
Power Ground return for Pin 2.
Output 20 MHz fixed output clock.
Output 33.8/42.83 MHz selectable clock output.
Output 40 MHz fixedoutput clock.
Input Input selector for CLK1.
X2
Output Crystal output drive.
2
ICS9120-52
Absolute Maximum Ratings
AVDD,VDD referenced to GND ...........................................................................7V
Operating temperature under bias...................................................... 0oC to +70oC
Storage temperature ....................................................................... -65oCto+150oC
Voltage on I/O pins referenced to GND ......................... GND-0.5VtoVDD+0.5V
Power dissipation ...................................................................................... 0.5 Watts
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any other conditions above those indicated in the operational
sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
productreliability.
Electrical Characteristics at 5 V
VDD = +4.5 to +5.5V, TA = 0 to 70oC unless otherwise stated
DC Characteristics
PARAMETER
Input Low Voltage
SYMBOL
VIL
TEST CONDITIONS
MIN
TYP
-
MAX
0.8
-
UNITS
V
-
Input High Voltage
Input Low Current
Input High Current
Output Low Voltage
Output High Voltage
Output Low Current
Output High Current
Supply Current
VIH
2.0
-
V
IIL
VIN=0V
VIN=VDD
-18.0
-8.3
-
-
µA
IIH
-
5.0
0.4
-
µA
VOL*
VOH*
IOL*
IOH*
IOL=+10mA
IOH=-30mA
VOL=0.8V
VOH=2.4V
Unloaded
-
0.15
3.7
V
2.4
V
25.0
45.0
-53.0
26.0
400.0
-
mA
mA
mA
k ohm
-
-
-
-35.0
50.0
800.0
DD
I
Pull-up Resistor Value
RPU*
AC Characteristics
r
Rise Time
Fall Time
Rise Time
Fall Time
T *
15pF load, 0.8 to 2.0V
15pF load, 2.0 to 0.8V
15pF load, 20% to 80%
15pF load, 80% to 20%
-
-
-
-
0.9
0.7
1.8
1.4
2.0
1.5
ns
ns
ns
ns
Tf*
Tr*
Tf*
3.25
2.5
15pF load @
50% of V DD
Duty Cycle
Dt*
45.0
50.0
55.0
%
Jitter, One Sigma
Tj1s*
Tjab*
Fi*
For all frequencies
For all frequencies
-
100.0
300.0
8.4
200.0
500.0
100.0
42.0
ps
ps
Jitter, Absolute
-500.0
8.0
Input Frequency Range
Output Frequency Range
MHz
MHz
Fo*
11.0
-
Output Mean Frequency
Accuracy vs. Target
Foa*
Tpu*
Cinx*
With 8.4672 MHz input
0 to 33.8 M Hz
-0.125
-
5.5
-
-0.04
12.0
-
%
Power-up Time
-
ms
pF
Crystal Input Capacitance
X1 (Pin 1), X2 (Pin 8)
-5
*Parameter is guaranteed by design and characterization. Not 100% tested in production.
3
ICS9120-52
Electrical Characteristics at 3.3 V
VDD = +3.0 to +3.7V, TA = 0OC-70oC unless otherwise stated
DC Characteristics
TEST CONDITIONS
PARAMETER
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
Output Low Voltage
Output High Voltage
Output Low Current
Output High Current
Supply Current
SYMBOL
MIN
TYP
-
MAX
UNITS
V
VIL
VIH
IIL
-
0.2VDD
0.7VDD
-
-
-
V
VIN=0V
-8.0
-3.6
µA
IIH
VIN=VDD
-
-
5.0
0.1
-
µA
VOL
VOH
*
*
IOL=6.0mA
IOH=4.0mA
VOL=0.2VDD
VOH=0.7VDD
Unloaded
-
0.05VDD
0.94VDD
24.0
-13.0
17.0
620.0
V
0.85VDD
V
IOL
IOH
*
15.0
-
mA
mA
mA
k ohm
*
-
-
-
-8.0
40.0
900.0
IDD
Pull-up Resistor Value
RPU*
AC Characteristics
Rise Time
Fall Time
Rise Time
Fall Time
Tr*
Tf*
Tr*
Tf*
15pF load 0.8 to 2.0V
15pF load 2.0 to 0.8V
15pF load 20% to 80%
15pF load 80% to 20%
-
-
-
-
1.5
1.0
2.2
1.5
4.0
3.0
4.0
3.0
ns
ns
ns
ns
15pF load @ 50% of
VDD; Except REFCLK
Duty Cycle
Dt*
45.0
-
50.0
150.0
330.0
55.0
200
%
ps
ps
For all frequencies
except REFCLK
Jitter, One Sigma
Jitter Absolute
Tj1s*
For all frequencies
except REFCLK
Tjab
*
-550.0
550.0
Input Frequency Range
Output Frequency Range
Fi*
Fo*
8.0
8.4
-
10.0
38.0
MHz
MHz
11.0
Output Mean Frequency
Accuracy vs. Target
Foa*
Tpu*
Cinx*
With 8.4672 MHz input
0 to 33.8 MHz
-0.125
-
5.5
5
-0.04
12.0
-
%
ms
pF
Power-up Time
-
-
X1 (Pin 1),
X2 (Pin 8)
Crystal Input Capacitance
*Parameter is guaranteed by design and characterization. Not 100% tested in production.
4
ICS9120-52
0.154
0.194
0.031
0.024
0.063
0.008
0.015
0.025
0.016
0.238
0.050
0.006
± 0.004
8-Pin SOIC Package
Ordering Information
ICS9120M-52
Example:
ICS XXXX M-PPP
Pattern Number (2 or 3-digit number for parts with ROM code pattern)
Package Type
M =SOIC
Device Type (consists of 3 or 4-digit numbers)
Prefix
ICS, AV=Standard Device
ICS reserves the right to make changes in the device data identified in this publication
5
without further notice. ICS advises its customers to obtain the latest version of all
device data to verify that any information being relied upon by the customer is current
and accurate.
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